Process of manufacturing bottle-closures.



A. BOGDANFFY. PROCESS 0F MANUFACTURING BOTTLE GLOSURES. APPLICATION FILED DEO. 21, 1912.

W Arron/ver A. BOGDANFFY. PROCESS 0F MANUFACTURING BOTTLE CLOSURES. APPLICATION FILED DBG. 21, 1912.

.,9, Patented May 26, 1914;

I 7 SHEETS-SHEET 2. FL@ '3 WIM/8858 il/K, A iwf A. BOGDANPFY. PROCESS OP'MANUPAGTURING BOTTLE GLosUREs. APPLICATION FILED DEG. 21, 1912.

1,098,087. Patented May 26, 1914.

7 SHEETS-SHEET 3.

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` A BOGDANFFY. PROCESS 0F MANUFACTURING BOTTLE CLOSURES. APPLICATION .FILED DBG. 21, 1912.

7 SHEETS-SHEET 4.

nf/ m52 WIM/8858 f 2 6 Patented May 26, 1914.

A.B0GDANPFY. PROGBSS OP MANUFACTURING BOTTLE GLOSURBS.

APPLICATION FILED DEO. 21, 1912.

TQM. Um

Patented May l26, 1914.

'I SHEETS-SHEET 5.

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A. BOGDANPPY. PROCESS 0F MANUFACTURING BOTTLE CLOSURES. APPLICATION FILED DEC. 21, 1912.

1,098,087.Y Patented May 26, 1914.

7 SHEETS-SHEET 8.

PROCESS OF MANUFACTURING BOTTLE GLOSURES.

APPLICATION FILED DBO. 21,1912.

1 Patented May 26, 1914.

7 SHEETS-SHEET 7.

nutren erases rare GFFEE@ ALEXANDER BDGDLLNEFY, 0F NEW YBlE N. Y., ASSIGNQE T0 THE INTERNATIONAL CGM GQMPANY, OF BRODKLYN, NEW YQBK, .A GOEPORATON 0F NEW YORK.

,RCESS 0F MNUFACTURNG BOTTLE-CLGSURES.

Specieation of Letters Patent.

resented May se, raie Application led Ilecernber 2l, 1912. Serial No. 737,986.

To all whom it' mag/f concern.'

Be.' it known that' I, Annxfxnnnn Boc- DNFFY, a subject of ythe King'of Hungary, and resident, of the city of New York, in the county of Kings and State of New York, have invented certain new and useful linprovements in Processes of Manufacturing Bottle-Closures, of which the following is a specificatione f y The present invention relates to a method or processfor the manufacture of bottle closures 'of the class known as crown cork sealing caps or closures. Closures of this type usually comprise three parts, that isa metallic cap or crown having a' corrugated flange to be locked to the exterior of .the bot` tle neck., a sealing disk or packing ofcorlr or the like, and an impervious binding material, for instance in the form of a dislr, interposed v between the metallic cap and the sealing' disk., In manufacturing these caps, the bind-` ing material is fused or softened and the'assembied closure subJected to pressure before the binding material sets orhardens, vwhereby the said binding materialv unites the seal- .f ing disk with the metallic cap. Usually the.

three parts mentioned are first assembled and the closure, as a whole, is then subjected to yheatin action to fuse the bindine medium and afterward *pressure is applied. 1n other casesthe caps contain only the binding material when heat is applied to the saine, the sealing disk or packingof cork or the like being inserted afterward. Heretofore the outer surface of the'cap'has been subjected to heating action,'the heat being conducted by 'the cap to the binding medium. lt has been found in practice that only that portion or surface of the binding material which is in contact with the inner surface of the cap is fully fused, that portion or surface which contacts or is to Contact with the sealing disk or packing being softened only to a certain` extent, The result of this is that,

' while the binding material is capable of being properly united with the cap, the union between the sealing dish or packing and the binding7 material is often detective. 'When plein or undecorated caps are used, it might be possible to expose the same to heating conditions which might fuse the binding material thoroughly, but when decorated caps are charged with the binding medium, and such caps subjected to heatin action, the

extent ct exposure to properly se the bind`1 ing material is always ruinous to the said decorated caps, inasmuch as it affects the paint used for decorating same and defaces otherwise the caps. Even plain caps cannot vbe heated to such an extent which is required to properly fuse both-faces of the binding medium for the reason that the said caps are transported from one place to the other on the assembling and uniting machine at a speed which prevents the proper extent of .exposure to heat.

vling properly fused at its contact faces with ythe-cap and packing disk, respectively, thereby obviating the defects above mentioned.

VVit-h 'theseand `other objects in View, whichwill -fully appear as the invention is `better understood, the same consists in the r'proces's, hereinafter described and pointedout in .the 'appended claims.

In carrying outthe process forming the if subject matter of the present application for LettersPatenQ-the inner surface of the cap is subjected to an intense heat.- The heating means may consist, preferably, of a gas vburner which should be of the Bunsen type' to cause a complete combustion of the illuminating gas' in order to prevent unconsumed particles of ca bon to settle onto the said inner surface.

'reason downward and the flame referably, the cap is inverted before subjected to such treatment, the mouth of the burner pointingb for this enig d1- `rected to the inner surface of the cap',l for instance, by compressed air, conducted to the said burner.

will be twofold; rst it evaporates or burns the greasy or oily substance usually cover- 1 ing or spotting the inner surface of the cap, thereby cleaning the said surface edectively,

and, second, it heats the inner surface of the cap, whereby, when the impervious binding medium is deposited into the same, its contact surface with the cap will be properly fused so that it will be adapted tc adhere perfectly to the inner 'surface of the cap.;

The removing of the oily or greasy sub-s stance aids materially such union. After the binding medium has been deposited into the cap, the exposed surface thereof is heated, preferably byv means of a burner which The result of this actionv mit which is directed to the said surface by come pressed 'air causing the binding medium to assume the shape of the inner surface of the cap. The binding medium being properlyv fused, a sealing disk or packing is placed into the cap, after which the assembled closure is subjected to pressure which will firmly unite the parts thereof, the binding material being partly or wholly hardened when discharged from the machine.

From the foregoing itiwill be observed y that the outer face of a cap is in no way affected by the heat, the deco-ration thereon will, therefore, remain in its origlnal state. Furthermore both contact surfaces of the binding medium are properly fused, with a i structed in accordance with the present invention; Fig. 2 is a side elevation thereof; Fig. 3 is a sectional View of the cap feeding device; Fig. 4 is a section taken on line 4--4 of Fig. 3; Fig. 5 is a section taken on line 5-5 of Fig. 3; Fig. 6 is a plan view of the device shown in Fig. 3, certain parts being removed to more clearlyshow the interior construction; Fig. 7 is a section taken on line 7-7 of Fig. 6, additional parts being placed on top of it; Fi 8 is a plan view of a detail ofthe device s own in Fig. 7 Fig. 9 is a plan view of a detail of the device shown in Fig. 6; Fig. 10 is a front elevation of the assembling means of the machine; Fig. 11 is a rear elevation of the device shown in Fig. 10; Fig. 12 is a side elevation.

thereof; Fig. 13 is a front elevation, Vpartly in section, of the means for actuating the binding material feeding means; Fig. 14 is a side elevation thereof; Fig. 15 is a longitudinal vertical section taken through the -means operatingy the device shown in Fig.

13; Fig. 16 is a section taken on line 16-16 of Fig. 15; Fig. 17 is a side elevation of a detail of the structure shown in Fig. 15; Fig. 18 is a side elevation also of a detail shown in Fig. 15; Fig. 19 is a plan view of the sealing disk feeding means; Fig. 20 is a rear elevation of a detail shown in Fig. 19; Fig. 21 is a side elevation of the mechanism shown in Fig. 20; Fig. 22 is a sectional elevation taken through the means for actuating the sealing disk feeding means; Fig. 23 is a sectional frontelevation of the device shown in Fig. 22; Fig.-24 is a rear elevation of a detail of the device shown in Fig. 23;

Loeaoev Fig. 25 is a sectional elevation taken through a portion of the uniting means of the machine; Fig. 26 is a plan view of the means for removing the finished product from theinstance, casing-shaped, and provided with a'horizontal top or table-section 31. A substantial distance below the table-section is .journaled in the frame the main ydriving shaft 32, to which rotation is imparted, for instance, by a belt running overa driving pulley 33, which is in any suitable manner member 35, having a longitudinal groove 36 in its underface, which isadapted to accommodate metallic caps that are fed thereinto in their inverted positions. This groove extends throughout the length of said plate member.l Parallel to said groove, and more particularly on each side thereof, is formed in the underface of said plate member a longitudinal recess 37, said recesses opening into said groove, and havin slidably arranged therein each av feeding strip 38.

These strips are adapted to reciprocate in the `longitudinal direction of the box-like structure 34, and also transversely thereof toward and away' from each other. The feeding strips 38 are provided in their opposite edges, denoted by the numerals 39, 39, with registering substantially semi-circular 'notches 40,40. The edges of these notchesA are adapted, when the feeding strips are moved toward and close to each other, to

grip firmly the head portions of the metallic caps which are located in alinement with said notches in the groove 36, and, as ythe said strips are advanced in the direction of the longitudinal axis of the box-like structure, t,o"carrv them forward a predetermined distance. he caps are brought in their inverted positions into the groove 36. on ya chute 4l, which receives them from a hopper or similar structure, the construction of which need not be described here as it does not form part of the present invention. The means for imparting to the feeding strips a to and fro motion in the direction of the longitudinal axis of the box-like structure 34, which motion will be hereinafter termed reciprocating motion, includes a disk 42, which is keyed or otherwise attached to the driving shaft, and provided in one of its faces with a cam groove 43. In this groove is seated a roller 44, carried by a lever 45, one end of which is fulcrumed at 46 to the frame, its other end carrying a pin 47, that is seated in a slot 48 in the downwardly extending lug 49 of a substantially H-shaped block 50. This block is provided in each of its four legs with a Icylindrical bore 51, through which are drawn two parallel horizontal rocking shafts 51,/which are mounted in the box-like structure 34 parallel tothe longitudinal axis of the latter. The block 50 is shiftably arranged 'upon the said rocking shafts, and provided in its upper face with transverse grooves 52, into which project lugs 53 upon the underfaces of the feeding strips 38. The grooves 52 are of a length to permit the feeding strips to move toward andaway from each other; this. movement -will be termed hereinafter the swinging movement of the feeding strips The swinging movement of the feedingv strips is effected by abar 54, Which'is pivoted to a bracket-54', that is conducted in its up and down movement by vertical guides 55 'upon the frame 30, the alternating movement of said *bracket* being caused by a roller 56, which is seated in the cam groove 43 and carriedby said bracket. VThe upper end of the bar 54 is provided with a pin-57, seated in slots 5,8.of two bell cranks 59, which are keyed, or otherwise attached, to the rocking shafts 51,the free lends of their other'arms engaging'apertures 60 in slides 61, inthe upper faces ofwhich areformed longitudinal grooves 62,' into which project down- Wardly extending lugs 63 upon the under-` faces of the feeding strips 38. The slides .61

are located in recesses 61 in theu'pper face of the box-like structure, and are adapted to move toward and away yfrom eachother transversely of the said box-like structure.

From the foregoing it appears that the lever 45 causes a reciprocating motion of the feeding strips, and the bar 54 a. swinging motion, that is to say amotion toward and away from each other. The cam groove 43 is shaped in such a manner and the rollers 44 and 56 disposed iny such relation that, Whenever the lever 45 swings toward the chute 41, the feeding strips are held in their open: positions, that ist'o sayaway from each other, and, when the lever 45 has reached its outermost position in the direction stated, the feeding stri s are caused by the barl 54 to move, towa'r each other into gripping positions, the ssaid feeding strips being kept in such gripping positions while the lever 45 moves in the opposite direction anduntil it has reached its. outermost point in that direction, when the bar 54 causes said strips to recede from each other. ldfhen the lever 45 reaches its outermost position in the direction of the chute 41, the outermost notches of the feeding strips 38 are brought in operative relation to a cap just received from the chute. The feeding strips then move toward each other, grip the said cap and obviously those in front of the same, advance them a predetermined distance in the groove,

ing the caps at rest.

. berl 35.

and wheneacling this position the feeding strips recede from each other, thereby leav- In this manner there are always a plurality of caps in the groove 36, arranged at distances from each other which correspond to the distances between. the notches in a feeding strip. All caps in the groove are brought `to rest simultaneously and are also advanced simultaneously. A cap received from the chute comes first to rest in registering position with a circular opening 64 in the plate mem- Above this opening is arranged a heating means, consisting, preferably, of a gas burner 65 of the Bunsen type to cause a complete combustion of the illuminating gas in order'to prevent unconsumed particles of carbon to settle'onto the inner surface Y of a cap. Inasmuch as the caps travel in the groove36 in their inverted positions, the mouth of the burner must point downward, the flame being directed to theinner surface of a cap by compressed air that is conducted to the said burner. The result of this action will betwofold, irst, it evaporates or burns the greasy or oily subst-ance usually Vcovering or spotting the inner surface of the cap, thereby cleaning the said surface effe'ctively and, second, it heats the inner surface of the cap,whereby, when the impervious binding medium is deposited into the same, its contact surface with the cap will -be properly fused lso-that it will be adapted to adhere perfectly tothe inner surface of the :cap-.1 The removing of the oily or greasy substance materiell aids such union. After the inners'urface o the cap has been heated inthe manner described, it is brought by the feeding' strips into registering position with a circular opening 66 in the plate member 35, stopping there to receive the binding medium. The binding medium is deposited into the cap in the form of a disk, which is cut from a strip 67 of suitably prepared paper or other material, that is wound upon a reel 68. This reel is journaled in lthe frame of the machine, the strip being conducted therefrom into a guide 69, to pass 'between the feeding rollers 70. The upper one of the feedin rollers is ixedly attached to a shaft 71, w iich is journaled'in the frame of the machine and carries on its outer end a friction clutch 72. The clutch comprises a disk 73, keyed or otherwisel attached to said shaft, and provided with a flange 74, in engagement with spring pressed dogs 7 5, which are carried by a lever 76, the latter/ being loosely mounted upon the shaft 71, and provided with apin 77 for actuating the same. When the lever76 is swung in the direction of the arrow shown in F ig. 14 of the drawings, the disk 73 is given a turn through a corresponding distance,`carrying with it the upper feeding roller 70, whereby the paper strip 67 is advanced alcorrespouding distance. When the lever 76 swin s in the other direction, obviously, the rol er remains stationary. The pin 77 is oscillated by means hereinafter to be described. The rollers 70 advance the paper strip intermittently to the cutting means, comprising a tuis pivoted at 86 to one end of a rod 87, the

other end of whiclrfin'turnfis secured at 88 in a similar manner to a link 89, that is fulcruined at 90 to the frame of the machine. Upon the downward movement of the cutter 79, a disk of binding material is cut from the strip 67, said disk being automatically forced, upon the upward movement of the cutter, by a stem 91 into the metallic cap.

The stem 91 is slidably arranged in guides 92 within the cutter, and carries upon its upper end a weight 93. When, therefore, the cutter 79 moves upward, the weight 93 will force the stem 91 downward and thereby the paper disk into vthe cap. After this, upon the further upward movement of the cutter, the uppermost one of the guides 92 will engage the weight 93 and lift thus the stem 91 out of the opening 66 in the plate member 35.

Around the opening 66 is formed'awa- -ter jacket 66 in which circulates a cooling fluid to prevent the strip 67 from being affected by the heat of the burner 65.

The means for actuating the lever 76 of the friction clutch comprises a slide 94, which is reciprocably arranged in a vertical guide 95, formed upon the frame 80. This slide is provided with a horizontal slot 96, in which is seated the pin .77 of the lever 76. ln the guide 95 is formed an arc-shaped slot 97, through which the pin 77 projects. Within the slide 94 is disposed a catch 98, pivoted at 99 to the said slide `and provided upon its upper end with a hook 100. A" spring 101 tends to force the said catch toward and into engagement with one of the sides of the guide 95. A. second slide 102 is also reciprocally arranged in the guide 95, and attached tothe arm 81. To thls slide is pivoted at 103 a downwardly extending pawl 104, its hook 105 being adapted to engage the hook 100 of the catch 98. A spring 106 forces the hook 105 of the pawl 104 toward and i-nto engagement with the hook 100 of the catch 98. To the guide 95 is pivoted at 107 a lever 108, its lower end carrying a sleeve 109 which is seated in the opening 64 in the plate member 35, while its upper end is provided with a pin 110, which is adapted to project through an aperture 111 in the wall of the guide 95 into the latter. The front edge 109 of the sleeve 109 is tapered. Normally the hook 100 of the catch 98 is in engagement with the hook 105A of the pawl 104 as will be presently described;

when, therefore, the arm 81 moves upward, the slide 94 moves therewith and thereby causes the lever 76 of the friction clutch to swing in the direction of the arrow shown in Fig. 14 of the drawings, advancing thus the paper strip a predetermined distance.

Upon the downward movement of the arm 81, the paper disk is cut anddeposited inthe manner above described into the cap,` ythe slide 94 being lowered by the slide 102, 'contacting therewith, thereby` swinging the lever 76 in the opposite direction, during which movement obviously the shaft 71 of the feeding roller 70 remains stationary. If

during the downward movement of the slides 94 and 102 there is no cap in register-V ing position with the circular opening 464, the sleeve 109 drops to the bottom of the groove 36, the pin 110 being thus withdrawn from the guide 95. The springi101 will then disengage the hook 100 of the.' catch 98 from 'the hook 105 of the pawl 104. Wlhen, therefore, the, slide 102 moves upward, it will not carry with it the slide 94, and for this reason the paper strip 67 will not be advanced. In such case, obviously, upon the whenever the feeding strips fail to bring a cap in registering position with the opening-66, no paper disk is cut, nor is one forced through the opening 66 into the groovey 36. If a cap is brought into proper position relative to the opening 64, the said cap engages the front edge 109 of the sleeve 109 and lifts the same, `thereby causing the pin 110 to project Iinto the guide and to force the hook of the catch 98 against the action of theispring 101 `into the path ofthe hook of the pawl 104. The slide 94 is thus 4carried upward during the next upward movement of the cutter, and the paper strip fed in operative relation to said cutter. After the binding medium has been deposited into the cap, the latter, is advanced by the feeding strips, and stops in registering position with a circular opening 112 in the 'plate member 35, above which'is disposed aburner 113, that is similar 'in construction to the one above mentioned. The

exposed surface of the binding disk is heated thereby, this heating action resulting in a proper fusing of the exposed surface; the flame which 1s directed to the said surface by compressed air causing at the same time the binding medium to assume the shape of the inner surface of the cap. The binding medium having been. properly fused, the

`next downward movement of the cutter 7.9 no binding disk will vbe cut. In other words,

ioo

-receives a sealing disk or packing of cork or the like. The sealing disks are placed into a vertical tube 115, held upon the frame 80, said `tube being provided with a longitudinal slot 116,'through which a finger piece 117 of a weight 118 prot'rudes, said weight being placed Aon top of said sealing disks, and serves to feed them to a conveyer 119, which engages the lowermost of the disks in the tube and transports it into registering y position with the circular opening 114. This opening tapers toward the plane of the top portion of the box 34, its upper diameter being larger than that of a sealing disk and its lower diameter being somewhat smaller than that of a disk. The purpose of 'this arrangement will be explained hereinafter. rlhe conveyer 119 1s made inthe form of an oscillating plate, which is pivoted at 120 to the plate member its acting end being providedwith a notch 121, that is adapted to accommodate a sealing disk. The conveyer 119 is actuated by a lever 122, which is fulcrumed at 123 to the frame 80, and

connected by a link 124 with said conveyer;

said link being pivoted at 125 and 126 to the said lever and conveyer, respectively.`

The lever 122 is actuated by a slide 127, reciprocably disposed within a guide 128, the latter being formed upon the frame 80.

' This 'slide is provided with a cam 129, projecting through a slot 130 in said guide. The cam bears against the inclined face 131 of the lever 122, the latter being held in con- -tact with said cam by springs 132, which are fastened to the said lever and the frame.- The inclined face 131 of the lever is, preferably, formed by a blade spring 133, fasf tened to the lower end of the lever, and adapted to be adjusted by a set screw 134 to predetermine the swing of the lever.- To the slide 127 ispivoted a spring pressed catch 135, which is in all respects identical in construction with the catch 98 above described, and adapted to coperate with a pawl 136, carried by a slide 137, the latter two elements being'similar in construction to the slide 102 and the pawl 104 above described. The slide 137 is attached to the arm 81 above described. A lever 138 is pivoted to the guide 128, said'lever being similar to the lever 108 above described, its sleeve 139 being disposed in the opening 112. 1f a cap is located in the groove 36 in registering position with the opening 112, to bebrought into registering position with the opening 114 at the next forward movement of the feeding strips, the lever 138 swingsthe catch 135 into the path of the pawl 136. The slide 127 will thus be carried upward by the arm 81 and aetuate by means of its cam 129 by the intermediary of the lever 122 the 'conveyer 119, the latter transporting a seal.- ing disk into opening 114. The springs 132 return the 'conveyer and the parts cooperating therewithto their normal positions. Obviously, if there is no cap brought to the opening 112,

' the slide 127 is not lifted by the slide 137,

and the conveyer 119 remains, therefore, stationary. The sealing disk is forced into `the cap by an assembling plunger 140, which is reciprocably arranged in the frame 8O and attached to the arm 81. During the downward movement of the plunger 140, the disk is forced by said plunger through the tapering opening 114 into the cap. It should be noted that, since the diameter o1 the lower end of the opening 114 is smaller than 'that of a sealing disk, the latter will be compressed to some extent, and, when forced into the cap, will expand and be held thus firmly in the cap. The cap, when in` registering position with the opening 114, rests upon a die 141 in the form of -a screw bolt, its upper face 142 being concave, conforming thus to the shape of the'l outer face of the head of a cap.

The assembled crowns" are advanced by the feeding strips to a uniting head 143, comprising a disk 144, keyed or otherwise attached to a `vertical shaft 145. 'To this shaft is iixedly attached a worm gear 146, the teeth of which mesh with a worm 147, that is carried by the main driving sha-ft 32. lith the disk 144 are made integral, or

there may be attached. thereto' by means of spokes 148, two rings 149 and 150; These rings are disposed above the disk 144 a suitable distance from each other, as clearly shown in Fig. 2 of the drawings. A plurality of vertically disposed plungers 151 are slidably arranged in the rings 149 and 150, said plungers being located .parallel to the shaft 145, and their lower ends being adapted to be forced by springs 152 into contact with the disk 144. The upper ends of the plungers, which project above the ring 150, are provided each with a peripheral recess 153, which is adapted to be en gaged by a stationary cam 154, (shown in dotted lines in Fig. 2, the plungers engaged thereby being omitted in said\iigure,) said cam being formed upon a plate 155, that is disposed in parallel relation to the ring 150 above the same. The cam is arranged in the path of the peripheral recesses of the plungers, whereby, as the uniting head rotates, said plungers will be raised by said cam, their springs lowering them as soon as disengaged from said cam. The cam raises a plunger before it arrives opposite to the feeding strips, and is disengaged from said plunger after it left the said feeding strips. llVhen a plunger arrives in registering position with the feeding strips, un assembled crown is placed upon the disk registering position with the ma v isc

144 beneath said plunger and, after the said plunger has been disengaged from the cam, its spring 152 will force the same against the assembled crown cork, placing thereby the closure undef` compression and holding it in this condition until the closure makes nearly a full revolution around the shaft 145, When the plunger again arrives at the cam and is disengaged from the closure, allowing the latter to be guided by a projection 156 into a chute 157, to slide into a receptacle placed beneath the same. It is obviousthat the binding material in the closure is still in its fused or softened condition when arriving upon the disk 144, so that this binding medium, due to the pressure, Will firmly unite the parts of the closure, the binding medium being partly or Wholly hardened When the closure is discharged into the chute.' It is obvious that the outer face of the cap is in no Way affected by heat. The decoration thereon will, therefore, remain in its original state; furthermore both faces of the binding medium are properly fused with a result that a firm union is obtained between the parts of the closure. l

The operation of the 4mzwiine is obvious from the fore oing. It is to be noted that a simple and e ective cap transporting mechanism is obtained, means being provided for preventing the advancing of the coated paper strip, the cutting and depositing of a binding disk and the feeding of a sealing disk in case caps are not brought in operative relation to the binding material depositing and sealing disk inserting elements of the machine.

1. Ina process for the manufacture of bottle closures, which consists in, first, heating the inner face of the ymetallic cap, second, depositing a fusible binding medium into the cap, third, heating the exposed face of said binding medium', fourth, placing a sealing disk into the cap on top of the binding medium, and, fifth, subjecting the assembled closure to pressure While the binding medium is hardening.

2. In a process for the Vmanufacture of bottle closures, which consists in, first, heating the inner face of the metallic cap, second, depositing a fusible binding medium into the cap, third, heating the exposed face of said binding medium, and, fourth, placing ak sealing disk into the cap on top of the binding medium.

Signed at New York, in the county of Kings and' State of New York, this 20th day of December, A. D. 1912.

ALEXANDER BOGDANFFY.

Witnesses:

' SIGMUND HERZOG,

S. BIRNBAUM. 

